1 | /* vi: set sw=4 ts=4: */
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2 | /*
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3 | * mknod implementation for busybox
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4 | *
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5 | * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
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6 | *
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7 | * This program is free software; you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation; either version 2 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * This program is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 | * General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with this program; if not, write to the Free Software
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19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 | *
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21 | */
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22 |
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23 | /* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
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24 |
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25 | #include <stdlib.h>
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26 | #include <string.h>
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27 | #include <sys/stat.h>
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28 | #include <sys/sysmacros.h> // For makedev
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29 | #include <unistd.h>
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30 | #include "busybox.h"
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31 | #include "libcoreutils/coreutils.h"
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32 |
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33 | static const char modes_chars[] = { 'p', 'c', 'u', 'b', 0, 1, 1, 2 };
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34 | static const mode_t modes_cubp[] = { S_IFIFO, S_IFCHR, S_IFBLK };
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35 |
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36 | int mknod_main(int argc, char **argv)
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37 | {
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38 | mode_t mode;
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39 | dev_t dev;
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40 | const char *name;
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41 |
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42 | mode = getopt_mk_fifo_nod(argc, argv);
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43 | argv += optind;
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44 | argc -= optind;
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45 |
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46 | if ((argc >= 2) && ((name = strchr(modes_chars, argv[1][0])) != NULL)) {
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47 | mode |= modes_cubp[(int)(name[4])];
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48 |
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49 | dev = 0;
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50 | if ((*name != 'p') && ((argc -= 2) == 2)) {
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51 | /* Autodetect what the system supports; thexe macros should
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52 | * optimize out to two constants. */
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53 | dev = makedev(bb_xgetularg10_bnd(argv[2], 0, major(UINT_MAX)),
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54 | bb_xgetularg10_bnd(argv[3], 0, minor(UINT_MAX)));
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55 | }
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56 |
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57 | if (argc == 2) {
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58 | name = *argv;
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59 | if (mknod(name, mode, dev) == 0) {
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60 | return EXIT_SUCCESS;
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61 | }
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62 | bb_perror_msg_and_die("%s", name);
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63 | }
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64 | }
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65 | bb_show_usage();
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66 | }
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